Transform Table with FROM TO Date into multiple line/dates Table

• This can all be done from the GUI
• Create  a custom column with the date lists and give it a name of "Date"
  • List.Dates([From],Duration.Days([To]-[From])+1,#duration(1,0,0,0))

• Delete the From/To Columns
• Move the new Date column to the proper location
• Expand the Date column into Rows (click on the two headed arrow at the top of the column and you will see that as an option)

M Code from Advanced Editor

let
    Source = Excel.CurrentWorkbook(){[Name="Table3"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{
        {"ProductFamily", type text}, {"From", type date}, {"To", type date}, {"ID", type text}}),
    
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Date", 
        each List.Dates([From],Duration.Days([To]-[From])+1,#duration(1,0,0,0))),
    
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"From", "To"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Removed Columns",{"ProductFamily", "Date", "ID"}),
   #"Expanded Date" = Table.ExpandListColumn(#"Reordered Columns", "Date"),
   #"Changed Type1" = Table.TransformColumnTypes(#"Expanded Date",{{"Date", type date}})
in
    #"Changed Type1"